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Chromic Acid (Chromium Trioxide)

Chromium(VI) oxide for professionally controlled chromium plating and industrial oxidation.

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ZXCHEM Chromic Acid (Chromium Trioxide), CAS 1333-82-0, Brownish-red flakes
PRODUCT IDENTIFICATION

Chromic Acid (Chromium Trioxide) at a Glance

ZXCHEM is a chromic acid (chromium trioxide) supplier and exporter in China. Chromic acid in this supply refers to solid chromium trioxide, CAS 1333-82-0, also called chromic anhydride. It is supplied as brownish-red flakes containing CrO3 ≥99.80%.

CAS No.1333-82-0
SynonymsChromic anhydride
Assay / GradeCrO3 ≥99.80%
EC / EINECS215-607-8
HS Code281910
Dangerous Goods ClassClass 5.1 — Oxidizer; subsidiary risks 6.1 and 8
AppearanceBrownish-red flakes
MF (component)CrO3
MW (component)99.99 g/mol

Request a free sample for testing.

Standard lead time is approximately 14 days from order confirmation.

TECHNICAL DATA

Chromic Acid (Chromium Trioxide) Specifications

ParameterSpecification
Appearance
Brownish-red flakes
CrO3 content
≥99.80 %
Sulfate
≤0.05 %
Sodium
≤0.02 %
Water-insoluble matter
≤0.02 %
Turbidity
≤5 NTU
Iron
≤0.005 %

Grade-specific supply limits. The agreed specification and batch COA govern delivery.

Commercial Information

OriginChina
MOQ1,000 kg
Packing50 kg net compatible dangerous-goods drums
Lead timeApproximately 14 days from order confirmation
SamplesContact us for free samples

Storage & Shipping

Storage Conditions

Keep locked, tightly sealed, dry and cool in compatible original containers. Segregate from combustible or organic materials, reducing agents, ammonia and incompatible reactants. Protect against heat, moisture and contamination.

Packaging Integrity

Check approved drum closures, corrosion, seals and lot labels before unloading. Protect the oxidizer from contamination; do not use combustible liners, sawdust or contaminated transfer equipment.

Packaging

50 kg net compatible dangerous-goods drums

Handling & Protection

Use closed transfer and effective extraction to prevent chromium(VI) dust exposure. Wear task-qualified chemical-resistant gloves, protective clothing and eye/face protection. Restrict access, maintain emergency washing facilities and use a qualified respiratory-protection programme.

What Is Chromic Acid (Chromium Trioxide)?

Chromic acid (chromium trioxide, CrO3), CAS 1333-82-0, is a hexavalent chromium compound supplied as brownish-red flakes with CrO3 ≥99.80%. It is used for hard and decorative chrome plating, chromate conversion coatings and wood preservation where permitted.

Limits include sulfate ≤0.05%, sodium ≤0.02% and water-insoluble matter, as listed in the specification table.

It ships as Class 5.1 with subsidiary Classes 6.1 and 8. Chromium(VI) is a carcinogen and strong oxidizer, so use closed handling and full exposure controls. Use in the EU and some other markets requires authorization.

As a chromium trioxide supplier and exporter in China, ZXCHEM packs it in 50 kg dangerous-goods drums.

See all surface treatment chemicals in our catalog.

FORMULATION

Chromic Acid (Chromium Trioxide) Applications

Chrome plating

Chromium source for hard and decorative chrome.

Conversion coatings

Chromate passivation and anodizing seal.

Other uses

Wood preservation and catalysts where permitted.

WHY ZXCHEM

Why Source Chromic Acid (Chromium Trioxide) from ZXCHEM

Combined chemical orders

Source several chemical raw materials through one ZXCHEM contact. We coordinate product selection, quotations and suitable consolidated shipments so you can plan the order with one team.

Dedicated R&D Laboratory

Discuss specifications, sample results and application questions with our technical team. Our dedicated R&D laboratory supports product testing and helps clarify material selection.

Experienced Chemical Logistics

ZXCHEM has more than 30 years of experience in dangerous-goods transportation. We coordinate suitable shipments through logistics companies in which we hold equity interests in Qingdao, Shanghai, Guangzhou and Tianjin.

Dedicated Purchasing Support

Your account manager follows the order from quotation and contract signing through shipment and after-sales support. One contact coordinates technical documents, commercial details and delivery updates.

BUYER FAQ

Chromic Acid (Chromium Trioxide) FAQ

Which Chromic Acid (Chromium Trioxide) grade should I choose?

The listed supply specification is CrO3 ≥99.80%. Check the TDS for assay and impurity limits, then test a sample for compatibility and performance in your process.

Can I request a Chromic Acid (Chromium Trioxide) sample for testing?

Yes. We can provide free samples for testing. Tell us the application, the grade you need and the tests you plan to run.

How is Chromic Acid (Chromium Trioxide) packed and shipped?

Standard packing is 50 kg net compatible dangerous-goods drums. The usual MOQ is 1,000 kg, with a lead time of approximately 14 days from order confirmation. The stated bulk transport classification is Class 5.1 — Oxidizer; subsidiary risks 6.1 and 8.

Which documents are available for Chromic Acid (Chromium Trioxide)?

The TDS lists the supply specification and the SDS covers safety and transport; both can be downloaded on this page. Each shipment comes with a batch COA.

Request a Quote for Chromic Acid (Chromium Trioxide)

Tell us the required grade, quantity, destination port and documents. We reply within one business day.

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